Roundabouts

"Research sponsored by the American Association of State Highway and Transporation Officials in cooperation with the Federal Highway Administration."

TRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, construction, maintenance, and operation of roundabouts. The report also addresses issues that may be useful in helping to explain the trade-offs associated with roundabouts. This report updates the U.S. Federal Highway Administration's Roundabouts: An Informational Guide, based on experience gained in the United States since that guide was published in 2000.

This book presents a history of roundabouts, an introduction to their design, calculations of their capacity and traffic-safety features. It describes the key features of standard roundabouts and their limitations. Alternative types of roundabouts are a fairly recent development and have only been implemented in a few countries to date. The book illustrates a broad variety of these recent alternative types of roundabouts, as well as proposed types still in the development phase, explaining for each the specific needs it meets, its advantages and drawbacks. In closing, the book offers an outlook on the role of roundabouts in future street traffic.

This book offers a collection of guidelines that will be particularly useful to those making decisions concerning roundabouts as safe and modern solutions in transport networks and systems. The decision-making support systems described here will interest those who face the challenge of finding solutions to problems concerning modern transport systems on a daily basis. Consequently, the book is chiefly intended for local authorities involved in planning and preparing development strategies for specific transport-related issues (in both urban and regional contexts), as well as for representatives of business and industry who are directly engaged in the implementation of traffic engineering solutions. The guidelines provided in the respective chapters help to address the given problem soundly, and to simplify the selection of an appropriate strategy. The topics covered include traffic conditions and the performance of single-lane, two-lane and turbo roundabouts, road traffic safety analysis, analysis of road traffic safety improvements, surrogate safety measures at roundabouts, analysis of pedestrian behavior at pedestrian crossings with public transport vehicles, methods for assessing vehicle motion trajectory at single-lane roundabouts using visual techniques, making compact two-lane roundabouts effective for vulnerable road users, concepts for wireless electric vehicle charging near roundabouts, work zones, and temporary traffic control at roundabouts. Since the book also considers new approaches to theoretical models (including modeling roundabout capacity, models of critical gaps and follow-up headways for turbo roundabouts, and estimating roundabout delay while taking into account pedestrian impact), it will also appeal to researchers and scientists studying these problems. The book gathers selected papers presented at the 15th Scientific and Technical Conference “Transport Systems. Theory and Practice”, organized by the Department of Transport Systems and Traffic Engineering, Silesian University of Technology in Katowice, Poland on September 17–19, 2018.

Ovid Dullann works as an assistant accountant for a multinational corporation and is supporting a family of four; but abruptly, on his forty-ninth birthday, Ovid runs away from his daily work and his loving family to go on a road trip. Struck by inspiration, Ovid knows that an Author is writing about him, and will do anything to avoid acting as a protagonist of a book. But this Author will not abandon his pursuit, and vows to punish Ovid, his wayward protagonist.

FROM THE INTRODUCTION BY JOHN LE CARRÉ "This novel comprises some of the best work of an extremely gifted and perhaps under-regarded British crime novelist....What gave John Bingham his magic was something we look for in every writer, too often in vain: an absolute command of the internal landscape of his characters, acutely observed by a humane but wonderfully corrosive eye." Nineteen years is a long time. But when Peter Harding and Philip Bartels meet up again in the French countryside of their youth, the history and the dark secrets it holds are still there, tempered only slightly by time. The two men share more than a past friendship. Decades earlier, trapped in a disenchanted marriage with his wife, Beatrice, Philip meets and falls in love with the graceful, charming Lorna Dickson. Overcome by the prospect of a humiliating divorce, Philip makes the decision to poison Beatrice. But when he invites his best friend, Peter, to meet his mistress at lunch one day, he unwittingly sets off a shocking chain of events that will forever change the lives of everyone involved. Now available for the first time in over twenty years, Five Roundabouts to Heaven is one of master writer and storyteller John Bingham's greatest works. With a chilling, expertly calibrated plot and mesmerizing prose, it is the powerful study of how murder can so easily enter the minds of ordinary people.

This is the first ever book devoted to the popular hobby of roundabout spotting, featuring over 80 full-colour favourites from humble painted minis to magnificent landscaped beauties, advice on the practical side of the pastime, and an exposition of the traffic-island's colourful history.